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| Number | Title | Issue Date |
| 8035475 | Quick connect fittings A resistor assembly and method of assembling a resistor to a coupling, comprises providing a resistor having a first end and a second end, the resistor being tubular in shape and providing a coupling housing having an open end for receiving the first end of the resi... | 10/11/2011 |
| 7102484 | High power resistor having an improved operating temperature range A high power resistor includes a resistance element with first and second leads extending out from the opposite ends thereof. A heat sink of dielectric material is in heat conducting relation to the resistance element. The heat conducting relationship of the resista... | 09/05/2006 |
| 6924726 | Liquid-cooled high-power resistor A high-power resistor comprises a plurality of resistor elements (1), made of sheets of an electrically conductive resistance material, with a first (13) and a second (14) terminal. The resistor elements are mutually separated by disc-shaped ins... | 08/02/2005 |
| 6525395 | Chip-type composite electronic component and manufacturing method thereof An inductor obtained by laminating a plurality of ceramic layers having an internal coil conductor, and a thermistor obtained by laminating a plurality of ceramic layers having internal electrodes and having a predetermined resistance-temperature characte... | 02/25/2003 |
| 6094129 | PTC thermistor and a current limiter device having at least one PTC thermistor PTC thermistors are used in reversible short circuit current limiters, in particular in series connection with electrical valves and/or capacitors. An electrically insulated, thermally conductive insulation or ceramic layer (20) is in contact electrically... | 07/25/2000 |
| 5796568 | Current limiter device A reversible short circuit current limiter which has at least one PTC thermistor connected in parallel with a shunt impedance branch, and is connected in series with at least one capacitor or a capacitor bank of the DC intermediate circuit. The short circ... | 08/18/1998 |
| 5508677 | Liquid-cooled heavy-duty resistor A liquid cooled, heavy duty resistor including a housing and a resistor element. The resistor element is arranged inside a chamber defined by the housing. The resistor element and the housing form a rectangular duct through which a cooling liquid flows fr... | 04/16/1996 |
| 5353005 | Liquid-cooled high-load resistor A liquid-cooled high-load resistor includes an element carrier having an inlet and an outlet, a break-through and a first and second electrical terminal connection, and one resistor element, respectively, on its flat sides. The active parts of the resisto... | 10/04/1994 |
| 4733595 | Muzzle arc suppressor for electromagnetic railgun A muzzle arc suppressor allowing rapid repetitive refiring of railguns. A varistor or varistors electrically connect the muzzle ends of a railgun. Resistive inserts are placed inside the rails near the muzzle end. When the railgun projectile reaches the r... | 03/29/1988 |
| 4716396 | High power density, low corona resistor A high power density, low corona resistor comprises a dielectric thermally conductive substrate having upper and lower surfaces and having a resistance element mounted on the upper surface thereof. The resistance element comprises a thin film of electrica... | 12/29/1987 |
| 4578745 | Semiconductor valve A high voltage semiconductor valve has a plurality of electrically series-connected semiconductor elements, for example thyristors or diodes. These are designed for pressure contact connection and for double-sided cooling and are arranged alternately with... | 03/25/1986 |
| 4496933 | Cooled resistor pack for brush with individually insulated strands A cooled resistor pack for a dynamoelectric machine wherein cooling water is passed through ducts in a conductive block and plurality of connectors are mechanically attached to the conductive block but electrically insulated therefrom and nichrome wires o... | 01/29/1985 |
| 4434417 | Liquid-cooled power resistor and use thereof A liquid-cooled power resistor contains at least one resistive conductor which is arranged in a closed housing directly in de-ionized water employed as the cooling liquid or coolant. The resistive conductor is advantageously secured in diaphragms which no... | 02/28/1984 |
| 4427965 | Resistor coolant device An electric resistor coolant device is provided which comprises a lined tank for inclusion of water or other coolant containing a water inlet and outlet in which is submerged one or more electric resistor coils. The electric resistor coils are utilized in... | 01/24/1984 |
| 4420739 | Liquid-cooled electrical assembly A liquid-cooled electrical assembly containing an arrangement for cooling at least one electrical component under current flow. In this assembly, liquid coolant flows into an inlet in the cooling arrangement and the heated-up coolant is removed through an... | 12/13/1983 |
| 4251710 | Resistor type arc welding machine A resistor type arc welding machine comprises a housing capable of containing a cooling liquid; first and second main resistors serially connected to each other, the free end of the first resistor being connected to the current line of an alternating curr... | 02/17/1981 |
| 4243872 | Electrical heating element An improved electrical heating element is constructed in such a manner as to increase the amount of electrical wire per unit space available for plug-type convection heating units. The plug uses a rectangular-shaped frame which has a plurality of spool co... | 01/06/1981 |
| 4233494 | Throughflow electric heater for fluids such as air Air is pumped from an upper chamber in a cylindrical housing through parallel groups of Ni-Cr steel heating tubes to a lower chamber communicating with a carbon-dioxide adsorber in an air-rectification system. The tube groups are suspended at their upper ... | 11/11/1980 |
| 4180723 | Electrical contacts for electrically conductive carbon glasses High-use-temperature electrical contacts for carbon-containing glasses which include a soft, glass-adherent metal layer in contact with the carbon phase in the glass and a compression electrode positioned over the metal layer which maintains compressive s... | 12/25/1979 |
| 4145601 | Electric heating installation for heating high purity liquid and gaseous media The installation for heating liquid and gaseous media comprises at least one heating unit which consists of an insulating body whose external surface is coated with a conducting film. The heating unit is made as a combination of variable-section container... | 03/20/1979 |
| 4107641 | Liquid rheostat A liquid rheostat includes a conductive element which surrounds multiple electrodes. The element provides a multiplicity of current paths between the electrodes at a given depth of electrolyte solution thus decreasing current concentration of the electrod... | 08/15/1978 |
| 4093968 | Resistors with heat sink A resistor with a heat sink, particularly adapted for use as a current limiter in an electrical system, such as a power transmission system. The resistor comprises a hollow tube formed of metal which offers resistance to the passage of electrical current,... | 06/06/1978 |
